May 2, 2014 5:00am PDT
. it should not be something that an outside nation dictates to ukraine and that is certainly what russia has demonstrated that it's trying to do. >> reporter: leaders in ukraine and the west are trying to avoid a repeat of what happened in crimea after the fall of pro-moscow president viktor yanukovych. voters there held a referendum in march, and decided to join russia. then, president vladimir putin annexed the republic. he's accused of sending in arms and agents to fuel the unrest so he could eventually send in troops under the pretense of protecting ethnic russians. putin and members of his administration have denied that again and again. he said in a statement that ukraine must withdraw all military units from the southeast, stop the violence, and immediately start a national dialogue that would involve all regions and all political forces. ukrainian soldiers have been manning checkpoints on the outskirts of the occupied area. but in the capital, they held an exercise to test the response to a threat on a government building. the head of the state guard said they performed a task well.
May 1, 2014 5:00am PDT
a referendum on their future just as the crimeans did. some want independence. some are pushing to join russia. the crisis has brought leaders of different nations together to try to figure out a diplomatic solution. japanese prime minister shinzo abe met in berlin with german chancellor angela merkel. >> translator: we reached an agreement to urge russia to play a responsible role in the international community. >> reporter: the u.s. and european union have been trying to pressure putin by broadening sanctions against senior russian officials and companies. >> the european borders cannot, will not be changed through political intimidation or military force. and we have to be resolute in imposing cost. >> reporter: russian leaders have denied they're behind the turmoil. and they've criticized the sanctions. they say they won't retaliate, yet. foreign minister sergei lavrov says they want to give others the opportunity to calm down. but things seem far from calm on the ground in eastern ukraine. as the separatists expand their reach. government troops stay well away, manning checkpoints on the